Arslanbob is a large walnut forest located in the mountains of the Jalal-Abad region on the Fergana and Chatkal ridges, at an altitude of 1700 meters. Arslanbob is the largest walnut forest in the world and belongs to the protected areas of Kyrgyzstan.

Arslanbob is a natural forest that originated in ancient times. Some scientists claim that it may be more than 50 million years old. Its area is about 700,000 hectares, and on this vast territory there are numerous trees of walnut, pistachio, almond, cherry plum, pear and many others (about 130 plant species). Some walnut trees are over a thousand years old, and each of them yields between 150 and 400 kilograms of nuts each year.

In addition to the forest itself, this area also has other attractions. There are several waterfalls here: the Big Arslanbob waterfall, its height is 80 meters and the small Arslanbob waterfall, its height is 35 meters. There are several lakes on the territory of the reserve. Lake Kel-Mazar is considered a sacred lake.